One-step room-temperature electrochemical production of 2H-molybdenum disulfide (2H-MoS2) powders as anode materials for lithium-ion batteries

Abstract

Two-dimensional (2D) molybdenum disulfide (MoS2) has emerged as a promising anode material for lithium-ion batteries (LIBs) due to its high theoretical capacity and layered crystal structure. Nevertheless, conventional synthesis techniques are often costly, energy-intensive, and involve complex processing. In this study, we developed a simple, scalable, and room-temperature (25 degrees C) electrochemical method to synthesize 2H-phase MoS2 powders using a one-step cyclic voltammetry process with low-cost precursors. This approach eliminates the need for high-temperature treatments and enables direct powder formation. The synthesized materials were structurally and morphologically confirmed by standard characterization methods. When used as anode materials in LIBs, the optimized MoS2 powders exhibited a high initial specific capacity of similar to 820 mA h g-1 at 0.1C. The electrodes also demonstrated excellent rate capability and cycling stability, retaining over 95% coulombic efficiency after 100 cycles. These findings highlight the potential of electrochemically synthesized MoS2 as a cost-effective and high-performance anode material for next-generation lithium-ion batteries.